We did not compile the whole light curve for variable stars, but generally
kept the measurement corresponding to the brightest magnitude. This is
intended only to keep track of the data sources and be able to go back
to the original papers.
Consequently, the dispersion of the measurements does not correspond to
the real amplitude. It may be artificially low if all observations
selected are close to the maximum of the light curve.
If a star has been declared variable by an observer, but has not yet
received a variable star designation, the remark "V" has been indicated.
Coding of the variable stars
Each constellation has received a number and
the star identification (letters) have been translated to figures,
A to Z being translated to 1 to 26.
The final coding for variable stars is like:
65XX0BBBB, for star name like DF Tau
- DF Tau becomes 657900406 (65 79 0 04 06), where
- 79 is the constellation number for Taurus
- 0 indicates that the original name was based on letters (DF)
- 04 and 06 stands for D and F respectively
65XX1BBBB, for star name like V380 Ori
- V380 Ori becomes 656010380 (65 60 1 0380), where
- 60 is the constellation number for Orion
- 1 indicates that the original number had the form Vxxxx (V380)
- 0380 is the star designation
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Last update: 7 Novembre 1995